Split-style electric skateboard

ABSTRACT

A split-style electric skateboard includes a main skating board, an auxiliary skating board, and a cross beam located between the main and auxiliary skating board. The main skating board has a steering wheel and a driving wheel arranged one behind the other. A driving motor is mounted in the driving wheel and the steering wheel is connected to the main skating board by a first steering support and a first pivot located on the first steering support. A secondary steering wheel is mounted at an intermediate position on the auxiliary skating board and is connected to the auxiliary skating board by a second steering support and a second pivot located on the second steering support. The first and second steering supports are fixedly connected by the cross beam, and the auxiliary skating board can rotate with respect to the main skating board using the first pivot as the rotation center.

TECHNICAL FIELD

The present invention relates to the technical field of electric transportation machinery, particularly to a split-style electric skateboard.

BACKGROUND ART

Skateboard was invented by the descendants of Edison, US, in the 20th century. They used a board, in a shape similar to a surfboard, and mounted four wheels on the lower part of the board so that people could stand on it easily. The original skateboard is pushed forward by kicking backward. A skateboard moves forward by rolling of the wheels, and needs much less effort than walking, so people would use skateboards as a means of transportation. Not only the shape of the skateboard is similar to that of the surfboard, but also the way and feeling of running the skateboard are extremely similar to the way and feeling of running a surfboard on the sea, therefore the skateboard is also considered to extend the surfing to the land. To make it more convenient to move the skateboard forward, now people use a motor to drive the skateboard forward by adding a battery on the bottom of the skateboard. Such electric skateboards are very popular with people once being put into market. High operation skills are required to run a skateboard, and especially it is difficult to make a turn within a small area. People cannot use a skateboard smoothly without practicing for a long time. Skateboarding itself is considered as an extreme sport. Therefore, people need to practice for a long time to use either a skateboard or an electric skateboard.

To reduce traffic pressure of a city, in the society, currently people are encouraged to go out by public transport means. However, normally there is a certain distance between people's residence and the public transport means. As a consequence, various portable electric scooters and electric skateboards become more and more popular with people. It is more convenient to steer an electric scooter since a steering handle is added thereto. Such electric scooters are easier to use than skateboards, but lack the feeling of surfing when a skateboard is moving forward. Generally, current electric scooters are divided into two-wheel electric scooters, and multi-wheel scooters such as three- or four-wheel scooters. The multi-wheel scooters have a large size and are inconvenient to carry since all the wheels thereof are fixed on one plate surface, while the two-wheel scooters have poor stability and are not easy for people to balance on them.

DISCLOSURE OF THE INVENTION

In view of the above problems, the present invention provides a split-style electric skateboard which has a split-style structure and which is convenient to steer and easy to maintain body balance.

The technical solution that the present invention uses to solve the technical problem is: the present split-style electric skateboard comprising a main skating board, an auxiliary skating board and a cross beam located between the main skating board and the auxiliary skating board, wherein the lower portion of the main skating board is provided with a steering wheel and a driving wheel arranged one behind the other, a driving motor is mounted in the driving wheel, the steering wheel is connected to the main skating board by means of a first steering support and a first pivot located on the first steering support, a secondary steering wheel is mounted at an intermediate position on a lower portion of the auxiliary skating board, the secondary steering wheel is connected to the auxiliary skating board by means of a second steering support and a second pivot located on the second steering support, the first steering support and the second steering support are fixedly connected by means of the cross beam, and the auxiliary skating board can rotate with respect to the main skating board using the first pivot as the rotation center.

Preferably, the secondary steering wheel is a directional wheel.

Preferably, the auxiliary skating board can rotate by 180 degrees or more with respect to the main skating board using the first pivot as the rotation center, by means of the cross beam. In this way, the auxiliary skating board may rotate from one side of the main skating board to the other side of the main skating board. This makes it convenient for users to use regardless of their dominant feet.

Preferably, the main skating board and the auxiliary skating board respectively comprise an elastic upper plate and a fixed lower plate arranged in parallel with one above the other, shock absorption devices are provided between the lower parts of the elastic upper plates and the upper parts of the fixed lower plates; the elastic upper plates and the fixed lower plates are rectangular plates, and the elastic upper plates are connected to the fixed lower plates corresponding thereto by bolt crimping.

Preferably, the shock absorption devices are springs or magnetic boards with opposite faces of the same polarity.

Preferably, a control panel is provided in the fixed lower plate of the main skating board, and a wireless transceiver is provided on the control panel; the split-style electric skateboard further comprises a controller which is configured to be able to send an electronic signal to the wireless transceiver on the control panel in a wireless manner.

Preferably, the split-style electric skateboard further comprises a multi-functional display control panel which is fixedly provided directly above the cross beam and which is configured to be able to receive an electronic signal sent from the wireless transceiver on the control panel and display an executing state corresponding to the electronic signal.

Preferably, the multi-functional display control panel is cuboid, an illuminating lamp is provided on a side surface of the multi-functional display control panel facing the front direction, a safety sensor is fixedly provided in the multi-functional display control panel, and a charging jack and a USB interface are provided on an external surface of the multi-functional display control panel.

Preferably, the cross beam is a hollow tube, in which a battery assembly is provided; and the split-style electric skateboard further comprises an external battery pack which is connected in parallel with the battery assembly in the cross beam via cables and the charging jack.

Preferably, a fixed support and a disc braking device fixed on the fixed support are provided in the driving wheel.

The beneficial effects of the invention lie in that the split-style electric skateboard has a split-style structure, wherein the main skating board and the auxiliary skating board are provided for one to place both feet, respectively, and a driving wheel, a steering wheel and a secondary steering wheel forming a three-point support are provided thereunder so that it will be more steady when a user is standing on it. The skateboard may be pushed forward as a whole by the rotation of the driving wheel which is driven by the power from the battery assembly, and the skateboard can be used as means of transportation or as a sports toy for teenagers. Moreover, the skateboard may be steered by triggering the left and right rotation of the steering wheel provided under the main skating board by the forward and backward movement of the auxiliary skating board, so that people can steer the skateboard freely only with their feet while they are moving forward. Moreover, such steering is easy to control and provides a large steering angle. Such split-style electric skateboard is portable for its simple structure, light weight and small size, and the skateboard can be steered at a large angle even in a crowd.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is an axonometric view of the split-style electric skateboard provided by an embodiment of the invention;

FIG. 2 is a three-dimensional view of the split-style electric skateboard provided by an embodiment of the invention, wherein partial structures are omitted for clarity;

FIG. 3 is a three-dimensional view of the split-style electric skateboard provided by an embodiment of the invention when viewed from the bottom.

DETAILED DESCRIPTION OF EMBODIMENTS

The invention will be further described below with reference to embodiments.

FIG. 1 is an axonometric view of the split-style electric skateboard provided by an embodiment of the invention; FIG. 2 is a three-dimensional view of the split-style electric skateboard provided by an embodiment of the invention, wherein partial structures are omitted for clarity; and FIG. 3 is a three-dimensional view of the split-style electric skateboard provided by an embodiment of the invention when viewed from the bottom. As shown in the embodiments in FIGS. 1, 2 and 3, the split-style electric skateboard comprises a main skating board 1, an auxiliary skating board 2 and a cross beam 8 located between the main skating board 1 and the auxiliary skating board 2, a lower portion of the main skating board 1 is provided with a steering wheel 3 and a driving wheel 4 arranged one behind the other, a driving motor is mounted in the driving wheel 4, the steering wheel 3 is connected to the main skating board 1 by means of a first steering support 5 and a first pivot 51 located on the first steering support 5, a secondary steering wheel 7 is mounted at an intermediate position on a lower portion of the auxiliary skating board 2, the secondary steering wheel 7 is a directional wheel, the secondary steering wheel 7 is connected to the auxiliary skating board 2 by means of a second steering support 6 and a second pivot 61 located on the second steering support 6, the first steering support 5 and the second steering support 6 are fixedly connected by means of the cross beam 8, and the auxiliary skating board 2 can rotate, and specifically by 180 degrees or more, with respect to the main skating board 1 using the first pivot 51 as the rotation center. When the auxiliary skating board 2 moves forward and backward, the auxiliary skating board 2 can lead the cross beam 8 and the steering wheel 3 to rotate left and right so as to jointly achieve steering of the split-style electric skateboard.

Note that the auxiliary skating board 2 and the secondary steering wheel 7 are connected by the second steering support 6 and the second pivot 61, the second pivot 61 is hinged to the cross beam 8, and the auxiliary skating board 2 and the secondary steering wheel 7 rotate circumferentially freely as a whole relative to the hinging position on the cross beam 8 so that the steering will become more flexible. In addition, the auxiliary skating board 2 can rotate, and specifically by 180 degrees or more, relative to the main skating board 1 using the first pivot 51 as the rotation center, so that the auxiliary skating board 2 may rotate from one side of the main skating board 1 to the other side of the main skating board 1, which means that the relative positions of the main skating board 1 and the auxiliary skating board 2 may be transposed, making it convenient for users to use regardless of their dominant feet.

Additionally, the driving wheel 4, which is a unidirectional forward drive wheel, cannot move backwards so that the skateboard may be stopped on a hillside anytime without sliding down, it is safe and reliable, and it also provides steadiness and reliability when a user is stepping onto the skateboard.

The split-style electric skateboard provided by the invention is an electric tool combining the functions of transportation and recreation. It has a split-style structure as a whole where the main skating board 1 and the auxiliary skating board 2 are provided for one to place both feet, respectively. Under the entire split-style electric skateboard (hereinafter referred simply to as “skateboard”), a driving wheel 4, a steering wheel 3 and a secondary steering wheel 7 are provided to form a three-point support, and the above three wheels are all directional wheels so that it will be more steady when a user is standing on it and the steering will be more free. Moreover, it is easier and more familiar for people to use the skateboard compared with sports skateboards currently used by people. The skateboard may be pushed forward as a whole by the rotation of the driving wheel which is driven by a driving motor, thereby the function of transportation is realized, and it can be used as a sports toy for teenagers or children. Besides, the auxiliary skating board 2 of the skateboard is fixedly connected with the second steering support 6 and the second pivot 61, so that when using the skateboard, people can steer the skateboard by the forward and backward movement of their feet which makes the auxiliary skating board 2 trigger the rotation of the steering wheel 3 provided under the main skating board 1. In the above steering mode, the functions of the main skating board 1 and the auxiliary skating board 2 are equally important. In this way, people can steer the skateboard only with their feet while moving forward. It releases people's hands compared with some of the prior scooters. Moreover, such steering is easy to control and provides a large steering angle, easily enabling some difficult sharp turns. Such split-style electric skateboard is portable for its simple structure, light weight and small size. The skateboard can be steered at a large angle even in a crowd. Specifically, the skateboard can turn 360 degrees, with a steering diameter less than 1 m, and normally of 60-70 cm. Furthermore, if a board surface of the split-style structure is damaged, it is only necessary to replace the corresponding board surface, which saves more material and makes it more convenient for replacement.

As shown in FIG. 3, the main skating board 1 and the auxiliary skating board 2 respectively comprise an elastic upper plate 11, 21 and a fixed lower plate 12, 22 arranged in parallel with one above the other. Shock absorption devices are provided between the lower parts of the elastic upper plates 11, 21 and the upper parts of the fixed lower plates 12, 22. The shock absorption devices are springs or magnetic boards with opposite faces of the same polarity. The elastic upper plates 11, 21 and the fixed lower plates 12, 22 are rectangular plates with four corners each being rounded. The elastic upper plates 11, 21 are connected to the fixed lower plates 12, 22 corresponding thereto by bolt crimping. Preferably, corresponding holes for bolt (commonly known as screw) crimping are provided at both ends of the elastic upper plates 11, 21 and the respective fixed lower plates 12, 22 along the center line. In this way, when a user is stepping on the skateboard, the elastic upper plates 11, 21 are pressed down so that the distance between the springs or the two magnetic boards is reduced, and thereby an elastic or magnetic repulsive force increases until it is balanced up and down. In such way, a shock absorption layer is formed by the elastic principle or magnetic principle. Such shock absorption structure is simple and is easy to assemble. A better shock absorption effect is achieved without direct contact between the up and down elements for buffering and shock absorption, so that the user's lower extremity joints are protected, and the impact incurred during movement is avoided. Furthermore, the user will feel like floating and can experience the joy of sports. The service lives of the main skating board 1 and the auxiliary skating board 2 are also extended.

Besides, the auxiliary skating board 2 can rotate by 360 degrees using the second pivot 61 as a rotation center, so that the user will feel more flexible and free to step thereon and will not feel any discomfort even after a long term of use. The user may step on the auxiliary skating board 2 with a foot as freely as the user desires, without influence on the operation of the skateboard, making it more flexible, free and comfortable for the user to use the skateboard. A control panel is provided in the fixed lower plate 12 of the main skating board 1, and a wireless transceiver is provided on the control panel; the split-style electric skateboard further comprises a controller which is configured to be able to send an electronic signal to the wireless transceiver on the control panel in a wireless manner. The controller can adjust an input amount of the current so as to achieve stopping of the skateboard or adjustment of the running speed of the skateboard. Additionally, the controller is configured to be able to send an electronic signal to the wireless transceiver on the control panel in a wireless manner, thus it is more convenient to control the control panel without using a wired control handle, and no wire twisting will occur, making it convenient for users to use.

It should be noted that the controller may also be interpreted as an external remote controller which may be held in the user's hand or put in the user's pocket. The user may hold the controller in hand to control the split-style electric skateboard when necessary. The wireless transceiver on the control panel in the main skating board 1 receives an electronic signal or command sent from the controller and then manipulates the skateboard to act based on the electronic signal or command. Further, the controller has a synchronous buzzer which buzzes when the wireless transceiver on the control panel in the main skating board 1 receives the electronic signal or command sent from the controller. In this way, one will know what state the skateboard is in from what he/she hears and feels, making it safer and more reliable.

As shown in FIG. 1, the split-style electric skateboard further comprises a multi-functional display control panel 9, the multi-functional display control panel 9 is fixedly provided directly above the cross beam 8, and the multi-functional display control panel 9 is configured to be able to receive an electronic signal sent from the wireless transceiver on the control panel and display an executing state corresponding to the electronic signal. Moreover, the multi-functional display control panel 9 is cuboid, an illuminating lamp 91 is provided on a front side surface of the multi-functional display control panel 9, a safety sensor 92 is fixedly provided in the multi-functional display control panel 9, and a charging jack 93 and a USB interface 94 are provided on an external surface of the multi-functional display control panel 9.

It should be noted that the multi-functional display control panel 9 is configured to be able to receive and display an electronic signal or command from the wireless transceiver on the control panel, e.g. an electronic signal or command requiring acceleration or deceleration, and it is accompanied by a synchronous buzzer so that one will know what state the skateboard is in based on what he/she hears and feels when the skateboard is running or stopped, without checking the multi-functional display control panel 9 all the time. Then, the multi-functional display control panel 9 will display an executing state corresponding to the electronic signal, e.g. running or stopped state. An illuminating lamp 91 is provided on a front side surface of the multi-functional display control panel 9, so that it is convenient for users to use the skateboard at night or in a place where light is dim. The safety sensor 92 is a range sensor (it could be a transducer or an infrared sensor). This range sensor is an emergency stop device, which can sense whether the skateboard is operated or used by someone and start a protection mode, such as auto-stop, when no one is standing on the skateboard, so as to protect the safety of the user and also to serve to protect the skateboard itself. A charging jack 93 and a USB interface 94 are provided on the external surface of the multi-functional display control panel 9, an electrical storage device of the skateboard may be charged via the charging jack 93, and the user's cellphone or other electronic products may be charged via the USB interface 94. The multi-functional display control panel 9 may also be provided with a horn so that it is convenient for the user to warn passersby.

The cross beam 8 is a hollow tube, in which a battery assembly is mounted; the split-style electric skateboard further comprises an external battery pack which is connected in parallel with the battery assembly in the cross beam 8 via cables and the charging jack 93, and the multi-functional display control panel is further provided with a main switch which controls circuit on/off of the battery assembly.

It should be noted that the external battery pack is portable by the user and may charge the battery assembly when the split-style electric skateboard needs to be charged outdoors. Also, the battery pack may take the form of a backpack so that people may carry it on their backs conveniently for use. The use of such battery pack significantly improves the battery storage amount of the split-style electric skateboard so that the skateboard may run further. The battery pack also serves the function of charging the battery assembly. The connecting wire of the battery pack and the main skating board are connected by means of plug-in. When the battery pack is not used, the split-style electric skateboard can be used independently, but to a shorter distance.

A fixed support and a disc braking device or disc brake pad fixed on the fixed support are provided in the driving wheel 4. If the user needs to stop the split-style electric skateboard, the user may send an electronic stop signal or command with the controller in the user's hand, and the control panel in the main skating board 1 receives the electronic stop signal or command and then controls startup of the disc braking device in the driving wheel 4 so as to stop the skateboard, i.e. brake the skateboard. In this way, people can control stopping of the skateboard only with the controller while the skateboard is moving forward.

It should be noted that other than the external controller, all the electronic elements described above and the battery assembly are connected with metal conductors in between.

As shown in FIG. 3, the auxiliary skating board 2 of the split-style electric skateboard is also provided with a handle 23 at the bottom thereof, the handle 23 is a hollow pull ring provided on the elastic upper plate 21 of the auxiliary skating board 2, also, the main skating board 1 and the auxiliary skating board 2 are provided with dust- and skid-proof plates on their upper surfaces, respectively, and a plate surface, of the dust- and skid-proof plate, at a position corresponding to the handle 23 is a small drop leaf. When using the skateboard, the user may step on the skateboard after closing the dust- and skid-proof plate. If the user does not use the skateboard and is to drag the skateboard, the user may open the small drop leaf of the dust- and skid-proof plate to expose the handle 23 and use the handle 23 to drag the skateboard.

It should be noted that when the user drags the split-style electric skateboard with the handle 23, the skateboard presents a “−” shape, which means that the board surfaces of the main skating board 1 and the auxiliary skating board 2 are located in a same straight line. This is because the auxiliary skating board 2 can rotate by 180 degrees or more with respect to the main skating board 1 using the first pivot 51 as the rotation center, and the auxiliary skating board 2 can rotate by 360 degrees using the second pivot 61 as the rotation center, so that it will be more convenient and easier for users to drag and carry the skateboard. 

1. A split-style electric skateboard, comprising a main skating board, an auxiliary skating board and a cross beam located between the main skating board and the auxiliary skating board, a lower portion of the main skating board provided with a steering wheel and a driving wheel arranged one behind the other, wherein a driving motor is mounted in the driving wheel, the steering wheel is connected with the main skating board by a first steering support and a first pivot located on the first steering support, a secondary steering wheel is mounted at an intermediate position on a lower portion of the auxiliary skating board, the secondary steering wheel is connected with the auxiliary skating board by a second steering support and a second pivot located on the second steering support, the first steering support and the second steering support are fixedly connected by the cross beam, and the auxiliary skating board can rotate with respect to the main skating board using the first pivot as a rotation center.
 2. The split-style electric skateboard according to claim 1, wherein the secondary steering wheel is a directional wheel.
 3. The split-style electric skateboard according to claim 1, wherein the auxiliary skating board can rotate by 180 degrees or more with respect to the main skating board using the first pivot as the rotation center, by the cross beam.
 4. The split-style electric skateboard according to claim 1, wherein the main skating board and the auxiliary skating board respectively comprise an elastic upper plate and a fixed lower plate arranged in parallel in a up-down direction, shock absorption devices are provided between the lower parts of the elastic upper plates and the upper parts of the fixed lower plates; the elastic upper plates and the fixed lower plates are rectangular plates, and the elastic upper plates are connected to the corresponding fixed lower plates by bolt crimping.
 5. The split-style electric skateboard according to claim 4, wherein the shock absorption devices are springs, or magnetic boards with opposite faces of same polarity.
 6. The split-style electric skateboard according to claim 5, wherein a control panel is provided in the fixed lower plate of the main skating board, and a wireless transceiver is provided on the control panel; the split-style electric skateboard further comprises a controller which is configured to be able to send an electronic signal to the wireless transceiver on the control panel in a wireless manner.
 7. The split-style electric skateboard according to claim 6, wherein the split-style electric skateboard further comprises a multi-functional display control panel, the multi-functional display control panel is fixedly provided directly above the cross beam, and the multi-functional display control panel is configured to be able to receive an electronic signal sent from the wireless transceiver on the control panel and display an executing state corresponding to the electronic signal.
 8. The split-style electric skateboard according to claim 7, wherein the multi-functional display control panel is cuboid, an illuminating lamp is provided on a side surface of the multi-functional display control panel facing a front direction, a safety sensor is fixedly provided in the multi-functional display control panel, and a charging jack and a USB interface are provided on an external surface of the multi-functional display control panel.
 9. The split-style electric skateboard according to claim 8, wherein the cross beam is a hollow tube, in which a battery assembly is provided; and the split-style electric skateboard further comprises an external battery pack which is connected in parallel with the battery assembly in the cross beam via cables and the charging jack.
 10. The split-style electric skateboard according to claim 1, wherein a fixed support and a disc braking device fixed on the fixed support are provided in the driving wheel. 